<template>
   <view class="login-container">
      <button type="primary" class="btn-login" open-type="getUserInfo" @getuserinfo="getUserInfo">一键登录</button>
      <view class="tips-text">登录后尽享更多权益</view>
    </view>
</template>

<script>
  import { mapMutations, mapState } from 'vuex'
  export default {
    name:"my-login",
    computed: {
        ...mapState('m_user', ['redirectInfo']),
      },
    data() {
      return {
        
      };
    },
    methods: {
      ...mapMutations('m_user', ['updateUserInfo', 'updateToken', 'updateRedirectInfo']),
      getUserInfo(e) {
        if (e.detail.errMsg === 'getUserInfo:fail auth deny') return uni.$showMsg('您取消了登录授权！')
        this.updateUserInfo(e.detail.userInfo)
        this.getToken(e.detail)
      },
      async getToken(info) {
        const [err, res] = await uni.login().catch(err => err)
        if (err || res.errMsg !== 'login:ok') return uni.$showError('登录失败！')
        const query = {
          code: res.code,
          encryptedData: info.encryptedData,
          iv: info.iv,
          rawData: info.rawData,
          signature: info.signature
        }
        const { data: loginResult } = await uni.$http.post('/api/public/v1/users/wxlogin', query)
        if (loginResult.meta.status !== 200) return uni.$showMsg('登录失败！')
        this.updateToken(loginResult.message.token)
        this.navigateBack()
      },
      navigateBack() {
        if (this.redirectInfo && this.redirectInfo.openType === 'switchTab') {
          uni.switchTab({
            url: this.redirectInfo.from,
            complete: () => {
              this.updateRedirectInfo(null)
            }
          })
        }
      }
    }
  }
</script>

<style lang="scss">
.login-container {
  height: 750rpx;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background-color: #f8f8f8;
  position: relative;
  overflow: hidden;
  &::after {
    content: ' ';
    display: block;
    position: absolute;
    width: 100%;
    height: 40px;
    left: 0;
    bottom: 0;
    background-color: white;
    border-radius: 100%;
    transform: translateY(50%);
  }
  .btn-login {
    width: 90%;
    border-radius: 100px;
    margin: 15px 0;
    background-color: #c00000;
  }
  .tips-text {
    font-size: 12px;
    color: gray;
  }
}

</style>